Contrast-Enhanced Magic-Angle MR Imaging of the Achilles Tendon
- 1 July 2002
- journal article
- Published by American Roentgen Ray Society in American Journal of Roentgenology
- Vol. 179 (1), 187-192
- https://doi.org/10.2214/ajr.179.1.1790187
Abstract
OBJECTIVE. The objective of this study was to image the Achilles tendon with MR imaging at the magic angle (the long axis of the tendon at 55° relative to the direction of the main static magnetic field [B0]) to detect signal from the tendon, to measure the T1 of the tendon, and to determine patterns of contrast enhancement in control subjects and patients.CONCLUSION. Mean T1 values of 311 ± 30 msec (at 1.0 T) were found in six volunteers. In six control volunteers, slow uptake of contrast material that dispersed over 40 min-1.5 hr was shown without focal change, with elimination in most cases occurring within 18-24 hr. Small rapidly enhancing focal areas of enhancement were seen next to the insertion of the tendon and centrally within 5-10 min in two control volunteers. The focal areas were located at the sites of the blood supply. A patient with chronic tendinopathy showed early local contrast enhancement that extended widely within the tendon over several hours. Two patients with a partially ruptured o...Keywords
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